Malicious File Detection Using Yara

critical Nessus Plugin ID 91990

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Synopsis

Nessus detected malicious files on the remote host.

Description

Nessus detected one or more files on the remote Windows host that match a Yara rule.

Note that Nessus has only scanned files with the following extensions:

.application, .asp, .aspx, .bat, .chm, .class, .cmd, .com, .cpl, .csh, .dll, .doc, .docx, .drv, .exe, .gadget, .hta, .inf, .ins, .inx, .isu, .jar, .job, .jpeg, .jpg, .jse, .jsp, .lnk, .msc, .msi, .msp, .mst, .paf, .pdf, .php, .pif, .ppt, .pptx, .ps1, .ps1xml, .ps2, .ps2xml, .psc1, .psc2, .reg, .rgs, .scf, .scr, .sct, .shb, .shs, .swf, .sys, .u3p, .vbe, .vbs, .vbscript, .wsf, .xls, xlsx

Plugin Details

Severity: Critical

ID: 91990

File Name: wmi_malware_yara_filesystem.nbin

Version: 1.181

Type: local

Agent: windows

Family: Windows

Published: 7/11/2016

Updated: 7/14/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS Score Rationale: The detection is suspected as being malware.

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: manual

CVSS v3

Risk Factor: Critical

Base Score: 10

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

Required KB Items: malscan/enabled

Detections

Analytics